Tomei 191170 Blow Off Valve Mitsubishi EVO 1-3 Image1
Images are generic.

Tomei Blow Off Valve Mitsubishi EVO 1-3

  • Aluminum construction

  • EVO I - III

  • Replaces stock BOV

Tomei 191170 Blow Off Valve Mitsubishi EVO 1-3
List Price: $130.00
$117.00  Save 10%
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Product Details

In a turbo engine, by closing a throttle in accelerator-off, the boosted air by the turbine sometimes flow backwards to a turbine, and may cause a turbine blow. Then, in order to prevent damaging turbine at the time of accelerator-off, the blow-off valve is installed between a turbo and a throttle. Stock blow-off valve of Evo is equipped with the function that relieves the boost pressure if the boost goes up too much at the time of accelerator-on. Therefore, the boost of Evo is not raised more than fixed boost pressure with stock blow-off. But, on the other hand, it will become the cause of turbine blow if the blow-off valve is removed. As for a TOMEI blow-off valve, only the boost pressure relief function has eliminated while the turbine protection function is left. Moreover, since we applied a bypass type instead of an air release type, there is no worry for engine stall or the deviation of a fuel control. It is an item indispensable to tuning of 4G63 by any means.


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Vehicle Applications

Years Make Model Trim Chassis Engine Notes
1992 - 1992 Mitsubishi Lancer EVOLUTION I     Blow Off Valve
1993 - 1994 Mitsubishi Lancer EVOLUTION II     Blow Off Valve
1995 - 1995 Mitsubishi Lancer EVOLUTION III     Blow Off Valve
1992 - 1993 Mitsubishi Lancer Evolution   (EVO I-CD9A) 4G63  
1993 - 1995 Mitsubishi Lancer Evolution   (EVO II-CE9A) 4G63  
1995 - 1995 Mitsubishi Lancer Evolution   (EVO III-CE9A) 4G63